Tags: Enzyme.
In enzymology a glutathione—cystine transhydrogenase (EC 1.8.4.4) is an enzyme that catalyzes the chemical reaction2 glutathione + cystine glutathione disulfide + 2 cysteineThus the two substrates of this enzyme are glutathione and cystine whereas its two products are glutathione disulfide and cysteine.This enzyme belongs to the family of oxidoreductases specifically those acting on a sulfur group of donors with a disulfide as acceptor.